corrections on 03 and 08, 09 done

09/Makefile

@@ -0,0 +1,9 @@
+obj-m += mounts.o 
+mounts-y = main.o rw.o
+PWD := $(CURDIR) 
+
+all: 
+	$(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules 
+
+clean: 
+	$(MAKE) -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean

09/main.c

@@ -0,0 +1,44 @@
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+#include <linux/sched.h>
+#include <linux/nsproxy.h>
+#include <linux/mount.h>
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("create /proc/mymounts file that lists mounts");
+
+struct proc_dir_entry *proc_file;
+
+int list_mounts(struct seq_file *m, void *v);
+
+static int list_mounts_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, list_mounts, NULL);
+}
+
+static const struct proc_ops proc_fops = {
+	.proc_open = list_mounts_open,
+	.proc_read = seq_read,
+	.proc_lseek = seq_lseek,
+	.proc_release = single_release,
+};
+
+static int __init mounts_init(void) 
+{ 
+	proc_file = proc_create("mymounts", 0444, 0, &proc_fops);
+	if(IS_ERR(proc_file)) return PTR_ERR(proc_file);
+	return 0;
+} 
+
+static void __exit mounts_exit(void) 
+{ 
+	proc_remove(proc_file);
+} 
+
+module_init(mounts_init); 
+module_exit(mounts_exit);
+

09/rw.c

@@ -0,0 +1,41 @@
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+#include <linux/nsproxy.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <../fs/mount.h>
+
+int list_mounts(struct seq_file *m, void *v);
+
+int list_mounts(struct seq_file *m, void *v)
+{
+	struct rb_node *cur;
+	struct mount *mnt;
+	char *buf;
+	char *path;
+
+	cur = current->nsproxy->mnt_ns->mnt_first_node;
+
+	buf = kmalloc(sizeof(char) * PATH_MAX, GFP_KERNEL);
+	while(cur)
+	{
+		mnt = rb_entry(cur, struct mount, mnt_node);
+
+		struct path p = {
+    		.mnt = &mnt->mnt,
+    		.dentry = mnt->mnt.mnt_root,
+		};
+
+		path = d_path(&p, buf, PATH_MAX);
+		if(IS_ERR(path))
+			path = 0;
+		seq_printf(m, "%-10s	%s\n", mnt->mnt_devname, path);
+		cur = rb_next(cur);
+	}
+	kfree(buf);
+	return 0;
+}